I've been given some notes and I have to 'unscramble' them and put them in order. They are supposed to describe what happens in the diagram below:
The notes to unscramble and form a proper answer from are below:
- Field lines
- Once it is pushed until 90 degrees then passes it
- It turns clockwise
- Then reverses motion and oscillates
- Comes to a rest vertically
Now, I understand that the order of things happening should be as follows, using the notes above, with little explanations to make a complete answer:
- The magnet's poles cause magnetic field lines to go from north to south
- Using the left-hand rule for each side of the coil, we can see that the forces do indeed go in the directions shown in the diagram. (Denoted in the diagram with "F" and arrows).
- This causes the coil to rotate clockwise.
- When it has rotated 90 degrees clockwise, it comes to a rest vertically.
- It then reverses direction and is pushed past 90 degrees backwards, anticlockwise. And so it will continue to oscillate, reversing direction every time it gets to the vertical position.
Am I correct?
If so, why exactly does it reverse direction? Please if someone could clarify this explicitly. I've been to many videos and tutorials that explain similar things, but mostly in the context of proper DC motors (and this is not a DC motor), but they keep confusing me.
On the other hand, if the coil doesn't reverse direction at all but continues in the same direction, please let me know!